Revert "cmd/coordinator: make version.sh return dirty if no git remotes"

This reverts CL 159699 (commit 269e03abe74bc43b688741a36205f5ca91dffce6)

Reason for revert: I now get failures:

bradfitz@gdev:~/src/golang.org/x/build/cmd/coordinator$ ./version.sh
./version.sh: 12: [: missing ]
a377ef91745ef6c4602d363321b0ee7e4a8be5a1-bradfitz-2019-01-30T19:45:32Z

Change-Id: I9e28ac41df327c29628f2b7ac3e0dd20cd31a921
Reviewed-on: https://go-review.googlesource.com/c/160480
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/cmd/coordinator/version.sh b/cmd/coordinator/version.sh
index 75e0a5c..4c5e073 100755
--- a/cmd/coordinator/version.sh
+++ b/cmd/coordinator/version.sh
@@ -9,7 +9,7 @@
   VERSION=$VERSION-dirty
   dirty=1
 fi
-if [ -n "$dirty" ] || [ -z "$(git remote -v)"] || [ -n "$(git rev-list '@{upstream}..HEAD')" ]; then
+if [ -n "$dirty" ] || [ -n "$(git rev-list '@{upstream}..HEAD')" ]; then
   VERSION=$VERSION-$USER-$(date -u +%Y-%m-%dT%H:%M:%SZ)
 fi
 echo "$VERSION"